File:Haliotis sorenseni 2.png

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Description
English: California Commercial White Abalone Haliotis sorenseni Landings for 1972–1992.
  • open squares - commercial catch per effort unit
  • left y axis - thousands of pounds of shell per vessel
  • filled circles - price of Haliotis sorenseni
  • right y axis - US$ per pound
The price exponentially increased as catch decreased. The catch takes the fishing effort into account, so that decreased catch does not come from a diminishing effort. Results are given as weight in shell divided by the number of ships (open squares) and price (filled circles).
Date
Source Courchamp F., Angulo E., Rivalan P., Hall R. J., Signoret L., Bull L. & Meinard Y. (2006) "Rarity Value and Species Extinction: The Anthropogenic Allee Effect". PLoS Biology 4(12): e415. doi:10.1371/journal.pbio.0040415. figure 3 doi:10.1371/journal.pbio.0040415.g003 cropped.
Author Franck Courchamp, Elena Angulo, Philippe Rivalan, Richard J. Hall, Laetitia Signoret, Leigh Bull, Yves Meinard
w:en:Creative Commons
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28 November 2006

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Date/TimeThumbnailDimensionsUserComment
current01:36, 11 December 2009Thumbnail for version as of 01:36, 11 December 20091,779 × 1,079 (27 KB)Snek01{{Information |Description={{en|California Commercial White Abalone ''Haliotis sorenseni'' Landings for 1972–1992. * open squares - commercial catch per effort unit * left y axis - thousands of pounds of shell per vessel * filled circles - price of ''H
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